<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像区域 -->
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="">
      </div>
      <!-- 登录表单区 -->
      <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0px" class="login_form">
        <!-- 用户名 --> 
        <el-form-item prop="username">
          <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
        </el-form-item>
        <!-- 密码  -->
                  <el-form-item prop="password">
          <el-input v-model="loginForm.password" prefix-icon="iconfont icon-3702mima" type="password"></el-input>
        </el-form-item>
        <!-- 按钮区 -->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>

    </div>
  </div>
</template>

<script>
export default {
  data(){
    return{
      // 登录表单的数据绑定对象
      loginForm:{
        username:'admin',
        password:'123456'
      },
      loginFormRules:{
        username:[ 
          { required: true, message: "请输入用户名称", trigger: "blur" },
          { min: 3, max: 10, message: "长度在 3 到 10 个字符", trigger: "blur"}
        ],
        password:[
          { required: true, message: "请输入用户密码", trigger: "blur" },
          { min: 6, max: 12, message: "长度在 6 到 12个字符", trigger: "blur" }
        ]
      }
    }
  },
  methods:{
    resetLoginForm(){
      this.$refs.loginFormRef.resetFields();
    },
    login(){
      this.$refs.loginFormRef.validate(async(validate)=>{
        if(!validate) return;
        const { data:res } = await this.$http.post("login",this.loginForm);
        if(res.meta.status!==200) return this.$message.error('登录失败！！！');
        this.$message.success('登录成功！！！')
      console.log(res);
        //将token保存到sessionStorage中
        window.sessionStorage.setItem('token',res.data.token)
        this.$router.push('/home')
      })
    }
  }
}
</script>

<style lang="less" scoped>
.login_container{
  height: 100%;
  background-color: #2b4b6b;
}
.login_box{
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%,-50%);

  .avatar_box{
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%,-50%);
    background-color: #fff;
    img{
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
}
.login_form{
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
.btns{
  display: flex;
  justify-content: flex-end;
}

</style>